package com.himore.api.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.Calendar;
import java.util.Date;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 * 
 * @author dongwang
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils{
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";
    
    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM", 
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     * 
     * @return Date() 当前日期
     */
    public static Date getNowDate(){
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     * 
     * @return String
     */
    public static String getDate(){
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime(){
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String dateTimeNow(){
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format){
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date){
        return parseDateToStr(YYYY_MM_DD, date);
    }

    public static final String parseDateToStr(final String format, final Date date){
        return new SimpleDateFormat(format).format(date);
    }

    public static final Date dateTime(final String format, final String ts){
        try{
            return new SimpleDateFormat(format).parse(ts);
        }
        catch (ParseException e){
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath(){
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime(){
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str){
        if (str == null){
            return null;
        }
        try{
            return parseDate(str.toString(), parsePatterns);
        }
        catch (ParseException e){
            return null;
        }
    }
    
    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate(){
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算两个时间差
     */
    public static String getDatePoor(Date endDate, Date nowDate){
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - nowDate.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }


    public static java.util.Date getStandarDate(){
        SimpleDateFormat sdf = new SimpleDateFormat(YYYY_MM_DD) ;
        try {
            return sdf.parse(getDate());
        }catch (Exception w){
            w.printStackTrace();
            return new Date();
        }
    }

    public  static  Date LocalDateTimeToUdate(LocalDateTime dateTime) {
        ZoneId zone = ZoneId.systemDefault();
        Instant instant = dateTime.atZone(zone).toInstant();
        java.util.Date date = Date.from(instant);
        return date;
    }

    public static Date addTimeTodate(Date date,int i) {
        SimpleDateFormat sdf = new SimpleDateFormat(YYYY_MM_DD) ;
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        c.add(Calendar.DAY_OF_MONTH, i);
        Date res = c.getTime();
        return res;
    }

    public  static int getDaysCount(Date date){
        Calendar cal = Calendar.getInstance();

        cal.setTime(date);

        final int last = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
        return  last;
    }

    public static void main(String[] args) {
       System.out.println(getDaysCount(new Date()));
    }

    public static String formatDateInfo(Date date){
        SimpleDateFormat sdf = new SimpleDateFormat(YYYY_MM_DD) ;
        return  sdf.format(date);

    }


    public static java.util.Date getYYYYMMDDDate(Date date){

        SimpleDateFormat sdf = new SimpleDateFormat(YYYY_MM_DD) ;
        try {
            String temp = sdf.format(date);
            return sdf.parse(temp);
        }catch (Exception w){
            w.printStackTrace();
            return new Date();
        }
    }

}
